Sen. Byron Dorgan (D-ND) "dropped a late-day bombshell, announcing he will retire when his term ends this year," USA Today reports.
"Dorgan's announcement represents an opportunity for Republicans: North Dakota is a Republican-leaning state, where President Obama got just 45% of the vote last year."
Most analysts now expect Gov. John Hoeven (R) to run. If so, he will instantly become the favorite to win this seat.
This news clearly favors the GOP because the GOP has other strong candidates besides Hoeven. The Democrats can run At Large Congressman Earl Pomeroy, State Superintendent of Public Instruction Wayne Sanstead, and State Agriculture Commissioner Roger Johnson and make a race out of this, though.